Home / 28,216.80-38,944.26-16,278.48

Finding the Fourth Proportional to 28,216.80, 38,944.26 and 16,278.48

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Solution

The fourth proportional to 28,216.80, 38,944.26 and 16,278.48 is: 22,467.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,216.80 : 38,944.26 = 16,278.48 : x
  2. Step 2: Convert to fraction form
    28,216.80/38,944.26 = 16,278.48/x
  3. Step 3: Cross multiply
    28,216.80x = 38,944.26 × 16,278.48
  4. Step 4: Simplify right side
    28,216.80x = 633,953,357.52
  5. Step 5: Solve for x
    x = 633,953,357.52/28,216.80
  6. Step 6: Final answer
    x = 22,467.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.